/****
* Classes
****/
//<Assets used in the game will automatically appear here>
// Bird class
var Bird = Container.expand(function () {
  var self = Container.call(this);
  var birdGraphics = self.attachAsset('bird', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedY = 0;
  self.gravity = 0.5;
  self.flapStrength = -10;
  self.update = function () {
    self.speedY += self.gravity;
    self.y += self.speedY;
  };
  self.flap = function () {
    self.speedY = self.flapStrength;
  };
});
// Coin class
var Coin = Container.expand(function () {
  var self = Container.call(this);
  var coinGraphics = self.attachAsset('coin', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = -5;
  self.update = function () {
    self.x += self.speedX;
  };
});
// Pole class
var Pole = Container.expand(function () {
  var self = Container.call(this);
  var poleGraphics = self.attachAsset('pole', {
    anchorX: 0.5,
    anchorY: 0.5
  });
  self.speedX = -5;
  self.update = function () {
    self.x += self.speedX;
  };
});

/****
* Initialize Game
****/
var game = new LK.Game({
  backgroundColor: 0x87CEEB // Sky blue background
});

/****
* Game Code
****/
var bird = game.addChild(new Bird());
bird.x = 300;
bird.y = 1366; // Center vertically
var coins = [];
var poles = [];
var score = 0;
var scoreTxt = new Text2('0', {
  size: 150,
  fill: "#ffffff"
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
game.down = function (x, y, obj) {
  bird.flap();
};
game.update = function () {
  bird.update();
  // Add new coins and poles
  if (LK.ticks % 100 == 0) {
    var newCoin = new Coin();
    newCoin.x = 2048;
    newCoin.y = Math.random() * 2732;
    coins.push(newCoin);
    game.addChild(newCoin);
    var newPole = new Pole();
    newPole.x = 2048;
    newPole.y = Math.random() * 2732;
    poles.push(newPole);
    game.addChild(newPole);
  }
  // Update coins and poles
  for (var i = coins.length - 1; i >= 0; i--) {
    coins[i].update();
    if (coins[i].intersects(bird)) {
      score += 1;
      scoreTxt.setText(score);
      coins[i].destroy();
      coins.splice(i, 1);
    } else if (coins[i].x < -50) {
      coins[i].destroy();
      coins.splice(i, 1);
    }
  }
  for (var j = poles.length - 1; j >= 0; j--) {
    poles[j].update();
    if (poles[j].intersects(bird)) {
      LK.effects.flashScreen(0xff0000, 1000);
      LK.showGameOver();
    } else if (poles[j].x < -50) {
      poles[j].destroy();
      poles.splice(j, 1);
    }
  }
  // Check if bird is out of bounds
  if (bird.y < 0 || bird.y > 2732) {
    LK.effects.flashScreen(0xff0000, 1000);
    LK.showGameOver();
  }
};